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physical science 8th > chapter 3 test > Flashcards

chapter 3 test Flashcards

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1
Q

how can you describe the motion of particles in a solid?

A

the particles in a solid are closely locked in position and can only vibrate.

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2
Q

what are crystalline solids?

A

solids that are made up of crystals are called crystalline solids

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3
Q

what are amorphous solids?

A

The particles are not arranged in a regular pattern.

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4
Q

what is a liquid?

A

A liquid has a definite volume but no shape of its own.

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5
Q

how can you describe the motion of particles in a liquid?

A

compared to the particles in a solid, the particles in a liquid I’m more loosely connected and collide with and move past one another.

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6
Q

what is a fluid?

A

substance that easily flows.

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7
Q

what is surface tension?

A

surface tension is the result of an inward to pull among the molecules of a liquid that brings the molecules on the surface closer together.

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8
Q

what is viscosity?

A

liquids resistance to flowing.

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9
Q

how can you describe the motion in gases?

A

in gases the atoms and molecules are free to move independently colliding frequently

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10
Q

what is melting?

A

The in a state from a solid to a liquid

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11
Q

what is the melting point?

A

The temperature at which a substance changes from a solid to a liquid

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12
Q

what types of measurements are useful in working with gases?

A

when working with the gas, it is helpful to know its volume, temperature, and pressure.

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13
Q

what is freezing?

A

change from liquid to a solid is freezing. it is the reverse of melting.

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14
Q

how are the volume, temperature, and pressure of a gas related?

A

when the temperature of a gas is increased at a constant pressure, it’s a boy and increases. When the temperature of a gas is decreased at constant pressure, it’s volume decreases.

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15
Q

what is vaporization?

A

change from a liquid to gas

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16
Q

what is evaporation?

A

vaporization takes place only on the surface of a liquid.

17
Q

what is boiling?

A

boiling occurs when a liquid changes to a gas below its surface as well as at the surface.

18
Q

what is the boiling point?

A

The temperature at which a liquid boils.

19
Q

what is condensation

A

The change in state from a gas to liquid.

20
Q

what is sublimation?

A

sublimation occurs when the surface particles of a solid date enough energy that they form a gas

21
Q

what is a solid?

A

A solid has a definite shape and definite volume.

22
Q

what is pressure?

A

The pressure of a gas is the force of its outward push divided by the area of the walls of the container

23
Q

what is directly proportional?

A

when a graphic to variables is a straight line passing through the origin, graphs are directly proportional to each other

24
Q

what is inversely proportional?

A

when the product at two variables is constant, variables are inversely proportional to each other.

25
Q

surface tension of water can act like a skin called

A

surface tension

26
Q

The amount of space that something takes up?

A

volume

27
Q

what state of matter fills all available space?

A

gas

28
Q

The freezing point of water is also known as the…

A

melting point

29
Q

hey teapot on a stove with water droplets means…

A

the water boiled

30
Q

The boiling point of a substance is affected by what?

A

The pressure

31
Q

what else can affect the temperature of a boiling point?

A

add another substance to it

32
Q

what is the opposite of vaporization?

A

condensation

33
Q

The force of gases outward push is called

A

gas pressure or atmosphere pressure

34
Q

Boyles law states that when the pressure of a gas increases, at a constant temperature its volume does what?

A

volume decreases

35
Q

if you heat a gas the particles do what?

A

speed up

36
Q

Charles law states that when the temperature of a gas increases but the pressure stays the same

A

volume increases

37
Q

want to grab, shows a vine going upward from left to right tells you what?

A

everything measured is increasing

38
Q

boyles the relationship between?

A

gas pressure and volume

39
Q

Charles law shows the relationship between…

A

temperature and volume

physical science 8th (5 decks)

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